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What principle is used to realize a single-material film?

日期: 2021-09-02 17:17 点击:

  In the national general terminology of packaging (GB4122-83), flexible packaging is defined as: flexible packaging refers to packaging in which the shape of the container can change after the contents are filled or taken out. All kinds of bags, boxes, sleeves, wraps, etc. made of paper, aluminum foil, fiber, plastic film and their composites are all flexible packaging.
 
        Generally, sheet-like plastics with a thickness of less than 0.25mm are called films. The plastic film of Zhongshan Jiajing Plastic Co., Ltd. is transparent, flexible, has good water resistance, moisture resistance and gas barrier properties, good mechanical strength, stable chemical properties, grease resistance, easy to print beautiful pictures and texts, and can be heat-sealed to make bags.
 
        It can meet the packaging requirements of various items, and is an ideal material for packaging easy-to-store and easy-to-place convenience foods, daily necessities, and small-packaged goods in supermarkets.
 
        Soft film is usually composed of PET and PE laminated composite material. The addition of PET can make the film have sufficient rigidity and is convenient for subsequent processing. Using PE alone makes subsequent processing more difficult.
 
        However, this composite material cannot be recycled.
 
 
        In response to the above problems, Jiajing Plastics has introduced a new technology of single-material film production into the flexible packaging industry. With years of accumulated experience and a sound management system, it has produced a composite film that can combine two or more films into one layer. To meet the requirements of food preservation and aseptic packaging technology, what is the seasoning?
 
        The outer layer of the composite film is mostly made of materials that are not easily scratched, sanded, have excellent optical properties, and have good printing properties, such as: paper, cellophane, stretched polypropylene, polyester, etc.; the middle layer is a barrier polymer, such as : Aluminum foil, vapor-deposited aluminum, polyvinylidene ethylene lining materials are mostly non-toxic, odorless polyethylene and other thermoplastic resins.
 
        Therefore, to produce a composite film, you must first design on the film formulation, and consider the selected resin for deployment. As a plastics manufacturer specializing in the production of films, Jiajing has more advanced large-scale multi-layer co-extrusion blown film machines, computer automatic slitting machines, and bag making machines with a width of 1.5 meters. The maximum width of the product is 1800 mm, the maximum thickness is 0.4 mm, the annual output is 10,000 tons, stable raw material supply, first-class professional technology and perfect equipment, and the choice of manufacturers with many years of mature experience naturally does not need to worry about quality problems!